Roots of Blood Incantation

Morbid Angel is an American death metal band based in Tampa, Florida, formed in 1983 by guitarist, primary composer and sole remaining original member Trey Azagthoth, vocalist and bassist Dallas Ward, and drummer Mike Browning. It was one of the first bands to incorporate guttural vocals, up-tempo blast beats, multiple tempo changes and a dark atmosphere. Morbid Angel was also the first death metal band to experience mainstream success in connection with being signed to Giant Records in 1992, heavy rotation of its music videos on MTV, and having the music video for the song "God of Emptiness" shown on an episode of Beavis and Butt-Head. The band's first three albums – Altars of Madness (1989), Blessed Are the Sick (1991), and Covenant (1993) – are considered classics in the death metal genre.

Emperor is a Norwegian black metal band formed in 1991 by guitarist and vocalist Ihsahn and guitarist Samoth. The group split up in 2001, but reunited from 2005 to 2007 for a few festival dates and brief US tours, and again reunited from 2013 to 2014. Emperor reformed for the third time in 2016.